[llvm] r231002 - Support: Add {read, write}{16, 32, 64}{le, be} functions.

[Rui Ueyama]

Author: ruiu
Date: Mon Mar  2 14:00:15 2015
New Revision: 231002

URL: http://llvm.org/viewvc/llvm-project?rev=231002&view=rev
Log:
Support: Add {read,write}{16,32,64}{le,be} functions.

Add convenient functions for endian-aware reads/writes.

Modified:
    llvm/trunk/include/llvm/Support/Endian.h

Modified: llvm/trunk/include/llvm/Support/Endian.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/Endian.h?rev=231002&r1=231001&r2=231002&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Support/Endian.h (original)
+++ llvm/trunk/include/llvm/Support/Endian.h Mon Mar  2 14:00:15 2015
@@ -195,7 +195,23 @@ typedef detail::packed_endian_specific_i
                    <int32_t, native, unaligned> unaligned_int32_t;
 typedef detail::packed_endian_specific_integral
                    <int64_t, native, unaligned> unaligned_int64_t;
-} // end namespace llvm
+
+namespace endian {
+inline uint16_t read16le(const void *p) { return *(ulittle16_t *)p; }
+inline uint32_t read32le(const void *p) { return *(ulittle32_t *)p; }
+inline uint64_t read64le(const void *p) { return *(ulittle64_t *)p; }
+inline uint16_t read16be(const void *p) { return *(ubig16_t *)p; }
+inline uint32_t read32be(const void *p) { return *(ubig32_t *)p; }
+inline uint64_t read64be(const void *p) { return *(ubig64_t *)p; }
+
+inline void write16le(void *p, uint16_t v) { *(ulittle16_t *)p = v; }
+inline void write32le(void *p, uint32_t v) { *(ulittle32_t *)p = v; }
+inline void write64le(void *p, uint64_t v) { *(ulittle64_t *)p = v; }
+inline void write16be(void *p, uint16_t v) { *(ubig16_t *)p = v; }
+inline void write32be(void *p, uint32_t v) { *(ubig32_t *)p = v; }
+inline void write64be(void *p, uint64_t v) { *(ubig64_t *)p = v; }
+} // end namespace endian
 } // end namespace support
+} // end namespace llvm
 
 #endif